openmv的帧率太低了几乎是2帧每秒，如何提高帧率！
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# Blob Detection Example # # This example shows off how to use the find_blobs function to find color # blobs in the image. This example in particular looks for dark green objects. import sensor, image, time, pyb from pyb import UART # You may need to tweak the above settings for tracking green things... # Select an area in the Framebuffer to copy the color settings. sensor.reset() # Initialize the camera sensor. sensor.set_pixformat(sensor.RGB565) # use RGB565. sensor.set_framesize(sensor.QQVGA) # use QQVGA for speed. sensor.skip_frames(10) # Let new settings take affect. sensor.set_auto_whitebal(False) # turn this off. clock = time.clock() # Tracks FPS. #sensor.set_windowing((100, 100)) # For color tracking to work really well you should ideally be in a very, very, # very, controlled enviroment where the lighting is constant... green_threshold = (54, 95, -4, 30, 22, 70) size_threshold = 1500 blue_led = pyb.LED(3) green_led = pyb.LED(2) red_led = pyb.LED(1) uart = UART(3, 9600) sensor.set_auto_exposure(True, exposure_us=5000) # make smaller to go faster def find_max(blobs): max_size=0 for blob in blobs: if blob[2]*blob[3] > max_size: max_blob=blob max_size = blob[2]*blob[3] return max_blob while(True): clock.tick() # Track elapsed milliseconds between snapshots(). img = sensor.snapshot() # Take a picture and return the image. blobs = img.find_blobs([green_threshold]) #FZ = bytearray([0x55,0x55,0x12,0x03,0x03,0xd0,0x07,0x01,0xa1,0x02,0x02,0x04,0x05,0x03,0x6c,0x06]) #FZ1 = bytearray([0x55,0x55,0x14,0x03,0x05,0xd0,0x07,0x01,0x05,0x09,0x02,0x4c,0x05,0x03,0xe9,0x02,0x04,0xc1,0x07,0x05,0x24,0x02]) #FZ1 = bytearray([0x55,0x55,0x08,0x03,0x01,0xd0,0x07,0x01,0x05,0x09]) #uart.write(FZ1) #FZ2 = bytearray([0x55,0x55,0x08,0x03,0x02,0xd0,0x07,0x02,0x4c,0x05]) #uart.write(FZ2) #time.sleep_ms(1000) #FZ3 = bytearray([0x55,0x55,0x08,0x03,0x03,0xd0,0x07,0x03,0xe9,0x02]) #uart.write(FZ3) #time.sleep_ms(1000) #FZ4 = bytearray([0x55,0x55,0x08,0x03,0x04,0xd0,0x07,0x04,0xc1,0x07]) #uart.write(FZ) time.sleep_ms(1000) xiangshu=0 if blobs: max_blob = find_max(blobs) max_blob1=find_max1(blobs) xiangshu = max_blob.blob[4] img.draw_rectangle(max_blob[0:4]) # rect img.draw_cross(max_blob[5], max_blob[6]) # cx, cy if xiangshu > size_threshold: #FZ = bytearray([0x55,0x55,0x05,0x06,0x64,0x01,0x00]) #art.write(FZ) red_led.on() time.sleep_ms(150)#延时150ms red_led.off() else: blue_led.on() time.sleep_ms(150) #延时150ms blue_led.off() else: green_led.on() time.sleep_ms(150) #延时150ms green_led.off()
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把time.sleep都删掉。延时了当然低。